Timer brush



Jul 3, 1923. 1,460,937

J. F. BEAVAN TIMER BRUSH Filed June 28 1922 Patented July 3, 1923.

UNITED STATES PATENT OFFICE.

TIMER BRUSH.

Application filed June 28, 1922.

To all whom it may concern:

Be it known that I, JAMES F. BEAVAN, a citizen of the United States, residing at Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Timer Brushes, of which the following is a specification.

My invention relates to an improvement in timer brushes.

This invention has the following advantages, to wit It makes starting on cold mornings easier; the brush is slanting, and has double tension through a circular spring, which insures perfect contact on timer-shell; the brush is of a material which will outwear two ordinary brushes, and, furthermore, is reversible, thus affording the equivalent of four ordinary brushes for the price of one; the brush being wide and having double spring tension insures a clean timer at all times; it has a long and extra heavy brush guide with a fiat spring passing through a slot in the brush, fastened at both ends, obviating the well-known objections of a loose brush, thus having the effect of producing a much simpler running motor; the present brush is made to fit the regular Ford timer shell as well as other makes; it will not wear the timer shell wavy or rough, but will keep it smooth, giving it the life of two or three shells used with the ordinary roller-in short, the present device is a long-lived brush giving perfect ignition.

In the accompanying drawings:

Fig. 1 is a view in perspective;

Fig. 2 is a longitudinal sectional view;

Fig. 3 and Fig. at are views showing the parts disassembled.

The numeral 1 represents a cylindrical sleeve adapted to receive the part to which the timer-brush is to be secured. Formed integral with one side of the sleeve is a socket 2, which forms a guide for the brush 3, which fits loosely in the socket and is slidably mounted therein. The brush is reversible, and has a slot 4 which receives loosely therethrough the flat or circular bow-spring 5, which is guided in the guide-slots 7 as the brush moves in and out, due to the pressure thereupon and the resiliency of the Serial No. 571,377.

spring. The ends of the spring are provided with lateral notches 8 which receive the set-screw 9 which screws into a threaded hole 10 in the lug 11 in the side of the sleeve as a simple means for holding the ends of the spring rigidly in place.

This timer brush is thus composed of only four elements, namely the sleeve with the socket and lug, the reversible brush, the spring, and the set-screw, all of which are easily and inexpensively made, and the brush itself is of such material and so constructed, that is to say being reversible, that its life and efliciency are greatly prolonged, and it is a simple matter to insert and employ a new brush, or reverse the one already in. The device has the further advantages and characteristics hereinbefore fully recited.

I claim:

1. A timer-brush including a sleeve, a socket, a brush slidable in the socket, a circular spring extending through the brush, and means for removably securing the ends of the spring rigidly in place.

2. A timer-brush including a sleeve, a socket, a brush slidable in the socket, the brush having a slot therethrough, and a spring extending loosely through the slot and rigidly secured at the side of the sleeve for exerting tension upon the brush.

3. A timer-brush including a sleeve having a socket, the outer end of which is notched to form guides, a reversible brush having a slot therethrough, a spring extending through the slot and guided by the notches, and means for securing the ends of the spring to the side of the sleeve.

4. The combination with a sleeve having a socket on one side and a lug on the other, the socket having notches formed at its outer end, a brush slidably mounted in the socket, and having a slot in line with the notches, a spring threaded through the slot and the notches and extending around the sleeve, the ends oppositely notched, and a set-screw adapted to extend through the notches and into the lug for rigidly holding the ends of the spring in place.

In testimony whereof I affix my signature.

JAMES F. BEAVAN. 

